OpenRail Thematic Height Display problems

Hi.

I have 2 issues with the thematic styles in OpenRail Designer.

1: I am not allowed to set maximum legend elevation below 0. This is quite unpractical since "all" my work is performed below 0m elevation. Highlighted in the picture below

2: How do I define that the style only applies to e.g. terrain models? In SS3 there was an additional tab in the window shown above where I could exclude / include element types affected by the display style. This also affected the max / min legend values if I recall correctly. In OpenRail, however, it looks as I will have to use display rules instead. This kind of works, but the legend does not update based on the filtered element types.